New submission from Alain Spineux :
This is a test script, to help me to understand why I have unexpected
result in application.
But I got a more unexpected result, and probably wrong error message
about the read-only cursor.
The full script is at the end.
I got this only one ! I restart the script after the crash, but
this has freezed my xen virtual machine after some minutes. I had to
"destroy" it and restart it.
After restart was not working anymore, blocked, not responding except to
CTRL-C
I had to drop the old DB, and then i worked again
I run python 2.5.2 inside a kolab 2.2.0 (aka openpkg) environement
on a xen centos 5.x running kernel 2.6.18-8.el5xen and glibc-2.5-12
The host is a P4 running centos 5.X and kernel 2.6.18-53.1.4.el5xen
Here are the errors, I waited for long time after the firts backtrace,
to press CTRL-C and got immediately the second backtrace.
Regards
db cleanup, 326 records deleted, 9990 remains
Exception in thread Thread-1:
Traceback (most recent call last):
File "/kolab/lib/python/threading.py", line 486, in
__bootstrap_inner
self.run()
File "/kolab/lib/python/threading.py", line 446, in run
self.__target(*self.__args, **self.__kwargs)
File "./test/test_bdb.py", line 85, in
update_thread=threading.Thread(target=lambda : cleanup(db))
File "./test/test_bdb.py", line 72, in cleanup
cursor.delete()
DBPermissionsError: (1, 'Operation not permitted -- Write attempted on
read-
only
cursor')
Traceback (most recent call last):
File "./test/test_bdb.py", line 130, in
server()
File "./test/test_bdb.py", line 92, in server
db[str(last)]=str(last)
KeyboardInterrupt
*** glibc detected *** /kolab/bin/python: double free or corruption
(fasttop):
0
x09d521a8 ***
=== Backtrace: =
/lib/i686/nosegneg/libc.so.6[0xccfd]
/lib/i686/nosegneg/libc.so.6(cfree+0x90)[0x444503b0]
/kolab/bin/python(__db_c_destroy+0x60)[0x81fa6f0]
/kolab/bin/python(__db_refresh+0x165)[0x81f3515]
/kolab/bin/python(__db_close+0x64)[0x81f3cb4]
/kolab/bin/python(__db_close_pp+0xa1)[0x8204b61]
/kolab/bin/python[0x812123f]
/kolab/bin/python[0x8159534]
/kolab/bin/python[0x815fb0a]
/kolab/bin/python[0x811abbc]
/kolab/bin/python[0x811abc9]
/kolab/bin/python[0x80b0229]
/kolab/bin/python(PyDict_SetItem+0x6e)[0x80b1c0e]
/kolab/bin/python(PyDict_SetItemString+0x42)[0x80b1ce2]
/kolab/bin/python(PyImport_Cleanup+0xd4)[0x8108294]
/kolab/bin/python(Py_Finalize+0xbf)[0x8113f1f]
/kolab/bin/python(Py_Main+0x468)[0x80845c8]
/kolab/bin/python(main+0x22)[0x8084052]
/lib/i686/nosegneg/libc.so.6(__libc_start_main+0xdc)[0x443fbdec]
/kolab/bin/python[0x8083fa1]
=== Memory map:
0011-001d7000 rwxp 0011 00:00 0
001d7000-001da000 r-xp ca:03 973941 /kolab/lib/python/lib-
dynload/
t
ime.so
001da000-001dc000 rwxp 2000 ca:03 973941 /kolab/lib/python/lib-
dynload/
t
ime.so
001dc000-001e r-xp ca:03 973938 /kolab/lib/python/lib-
dynload/
s
trop.so
001e-001e2000 rwxp 3000 ca:03 973938 /kolab/lib/python/lib-
dynload/
s
trop.so
001e2000-001e3000 r-xp ca:03 973911 /kolab/lib/python/lib-
dynload/
_
weakref.so
001e3000-001e4000 rwxp ca:03 973911 /kolab/lib/python/lib-
dynload/
_
weakref.so
001e4000-001ea000 rwxs ca:03 1747650/tmp/db/__db.001
001ea000-001fc000 rwxs ca:03 1747651/tmp/db/__db.002
001fc000-0023e000 rwxs ca:03 1747652/tmp/db/__db.003
00388000-003e rwxs ca:03 1747653/tmp/db/__db.004
0045-00452000 r-xp ca:03 1132355/lib/libutil-2.5.so
00452000-00453000 r-xp 1000 ca:03 1132355/lib/libutil-2.5.so
00453000-00454000 rwxp 2000 ca:03 1132355/lib/libutil-2.5.so
00459000-0047e000 r-xp ca:03 1132349/lib/i686/nosegneg/
libm-2.5.so
0047e000-0047f000 r-xp 00024000 ca:03 1132349/lib/i686/nosegneg/
libm-2.5.so
0047f000-0048 rwxp 00025000 ca:03 1132349/lib/i686/nosegneg/
libm-2.5.so
0063e000-0063f000 r-xp 0063e000 00:00 0 [vdso]
0097a000-0098d000 r-xp ca:03 1134447/lib/i686/nosegneg/
libpthread-2
.
5.so
0098d000-0098e000 r-xp 00012000 ca:03 1134447/lib/i686/nosegneg/
libpthread-2
.
5.so
0098e000-0098f000 rwxp 00013000 ca:03 1134447/lib/i686/nosegneg/
libpthread-2
.
5.so
0098f000-00991000 rwxp 0098f000 00:00 0
009a8000-009e9000 rwxp 009a8000 00:00 0
00b8-00d8 r-xp ca:03 845325 /usr/lib/locale/
locale-archive
00ec9000-00ecc000 r-xp ca:03 973916 /kolab/lib/python/lib-
dynload/
c
St
